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#ifndef OTHER_DWA20020601_HPP
# define OTHER_DWA20020601_HPP
# include <boost/python/detail/prefix.hpp>
// Copyright David Abrahams 2002.
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
# if _MSC_VER+0 >= 1020
# pragma once
# endif
# include <boost/config.hpp>
namespace boost { namespace python {
template<class T> struct other
{
typedef T type;
};
# ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
namespace detail
{
template<typename T>
class is_other
{
public:
BOOST_STATIC_CONSTANT(bool, value = false);
};
template<typename T>
class is_other<other<T> >
{
public:
BOOST_STATIC_CONSTANT(bool, value = true);
};
template<typename T>
class unwrap_other
{
public:
typedef T type;
};
template<typename T>
class unwrap_other<other<T> >
{
public:
typedef T type;
};
}
# else // no partial specialization
}} // namespace boost::python
#include <boost/type.hpp>
namespace boost { namespace python {
namespace detail
{
typedef char (&yes_other_t)[1];
typedef char (&no_other_t)[2];
no_other_t is_other_test(...);
template<typename T>
yes_other_t is_other_test(type< other<T> >);
template<bool wrapped>
struct other_unwrapper
{
template <class T>
struct apply
{
typedef T type;
};
};
template<>
struct other_unwrapper<true>
{
template <class T>
struct apply
{
typedef typename T::type type;
};
};
template<typename T>
class is_other
{
public:
BOOST_STATIC_CONSTANT(
bool, value = (
sizeof(detail::is_other_test(type<T>()))
== sizeof(detail::yes_other_t)));
};
template <typename T>
class unwrap_other
: public detail::other_unwrapper<
is_other<T>::value
>::template apply<T>
{};
}
# endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
}} // namespace boost::python
#endif // #ifndef OTHER_DWA20020601_HPP
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